1285846063641 has 24 divisors (see below), whose sum is σ = 1929037516224. Its totient is φ = 855933732720.

The previous prime is 1285846063487. The next prime is 1285846063643. The reversal of 1285846063641 is 1463606485821.

1285846063641 is a `hidden beast` number, since 1 + 2 + 85 + 8 + 460 + 63 + 6 + 41 = 666.

It is not a de Polignac number, because 1285846063641 - 2²⁵ = 1285812509209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1285846063643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3842061 + ... + 4163306.

It is an arithmetic number, because the mean of its divisors is an integer number (80376563176).

Almost surely, 2^{1285846063641} is an apocalyptic number.

It is an amenable number.

1285846063641 is a deficient number, since it is larger than the sum of its proper divisors (643191452583).

1285846063641 is an frugal number, since it uses more digits than its factorization.

1285846063641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8006043 (or 8006031 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 1285846063641 in words is "one trillion, two hundred eighty-five billion, eight hundred forty-six million, sixty-three thousand, six hundred forty-one".